OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-3b70bc-0): addr:8a:e6:55:15:48:bb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:06:12:bd:b2:59:b5
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
